Add map component

31 files changed, 675 insertions, 296 deletions

diff --git a/README.md b/README.md
index 2b75b0d..275a6d5 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Only selected packets will be returned by `poll`, to avoid unnecessary conversio
 Poll will return early if the script is interrupted by a signal, one of the selected clients is disconnected or the configured timeout elapses.
 
 Additionally, different native components can be enabled per-client to manage state.
-Currently only the `auth` component is available, but components like `map`, `objs`, `inv`, `pos`, `playerlist` etc. will be added in the future.
+Currently `auth` and `map` components are available, and components like `objs`, `inv`, `pos`, `player_list` etc. will be added in the future.
 Components handle packets asynchronously, they will process them even if poll is not called.
 
 # Further Documentation
diff --git a/builtin/base64.lua b/builtin/base64.lua
new file mode 100644
index 0000000..5afa64a
--- /dev/null
+++ b/builtin/base64.lua
@@ -0,0 +1,43 @@
+--[[ builtin/base64.lua ]]--
+
+-- Taken from: http://lua-users.org/wiki/BaseSixtyFour with minor modifications
+
+-- Lua 5.1+ base64 v3.0 (c) 2009 by Alex Kloss <alexthkloss@web.de>
+-- licensed under the terms of the LGPL2
+
+local base64 = {}
+package.loaded.base64 = base64
+
+-- character table string
+local b='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+
+-- encoding
+function base64.encode(data)
+    return ((data:gsub('.', function(x)
+        local r,b='',x:byte()
+        for i=8,1,-1 do r=r..(b%2^i-b%2^(i-1)>0 and '1' or '0') end
+        return r;
+    end)..'0000'):gsub('%d%d%d?%d?%d?%d?', function(x)
+        if (#x < 6) then return '' end
+        local c=0
+        for i=1,6 do c=c+(x:sub(i,i)=='1' and 2^(6-i) or 0) end
+        return b:sub(c+1,c+1)
+    end)..({ '', '==', '=' })[#data%3+1])
+end
+
+-- decoding
+function base64.decode(data)
+    data = string.gsub(data, '[^'..b..'=]', '')
+    return (data:gsub('.', function(x)
+        if (x == '=') then return '' end
+        local r,f='',(b:find(x)-1)
+        for i=6,1,-1 do r=r..(f%2^i-f%2^(i-1)>0 and '1' or '0') end
+        return r;
+    end):gsub('%d%d%d?%d?%d?%d?%d?%d?', function(x)
+        if (#x ~= 8) then return '' end
+        local c=0
+        for i=1,8 do c=c+(x:sub(i,i)=='1' and 2^(8-i) or 0) end
+        return string.char(c)
+    end))
+end
+
diff --git a/builtin/escapes.lua b/builtin/escapes.lua
index 12ba174..e3ff161 100644
--- a/builtin/escapes.lua
+++ b/builtin/escapes.lua
@@ -2,7 +2,7 @@
 -- code taken from minetest/builtin/common/misc_helpers.lua with modifications
 
 local escapes = {}
-package.loaded["escapes"] = escapes
+package.loaded.escapes = escapes
 
 escapes.ESCAPE_CHAR = string.char(0x1b)
 
diff --git a/builtin/vector.lua b/builtin/vector.lua
index eed368f..654a839 100644
--- a/builtin/vector.lua
+++ b/builtin/vector.lua
@@ -43,7 +43,10 @@ mt_vec2.__index = {
 		assert(type(self.x) == "number")
 		assert(type(self.y) == "number")
 		return self
-	end
+	end,
+	round = function(self)
+		return vec2(math.round(self.x), math.round(self.y))
+	end,
 }
 
 function vec2(a, b)
@@ -91,7 +94,10 @@ mt_vec3.__index = {
 		assert(type(self.y) == "number")
 		assert(type(self.z) == "number")
 		return self
-	end
+	end,
+	round = function(self)
+		return vec3(math.floor(self.x), math.floor(self.y), math.floor(self.z))
+	end,
 }
 
 function vec3(a, b, c)
diff --git a/client.go b/client.go
index d27af33..13795e5 100644
--- a/client.go
+++ b/client.go
@@ -212,6 +212,8 @@ func l_client_enable(l *lua.LState) int {
 			switch compname {
 			case "auth":
 				component = &Auth{}
+			case "map":
+				component = &Map{}
 			default:
 				panic("invalid component: " + compname)
 			}
diff --git a/convert/push_auto.go b/convert/push_auto.go
index 282a5f5..beb30c2 100644
--- a/convert/push_auto.go
+++ b/convert/push_auto.go
@@ -6,7 +6,7 @@ import (
 	"github.com/yuin/gopher-lua"
 )
 
-func pushAnimType(l *lua.LState, val mt.AnimType) lua.LValue {
+func PushAnimType(l *lua.LState, val mt.AnimType) lua.LValue {
 	switch val {
 	case mt.NoAnim:
 		return lua.LNil
@@ -19,7 +19,7 @@ func pushAnimType(l *lua.LState, val mt.AnimType) lua.LValue {
 	return lua.LNil
 }
 
-func pushChatMsgType(l *lua.LState, val mt.ChatMsgType) lua.LValue {
+func PushChatMsgType(l *lua.LState, val mt.ChatMsgType) lua.LValue {
 	switch val {
 	case mt.RawMsg:
 		return lua.LString("raw")
@@ -34,7 +34,7 @@ func pushChatMsgType(l *lua.LState, val mt.ChatMsgType) lua.LValue {
 	return lua.LNil
 }
 
-func pushHotbarParam(l *lua.LState, val mt.HotbarParam) lua.LValue {
+func PushHotbarParam(l *lua.LState, val mt.HotbarParam) lua.LValue {
 	switch val {
 	case mt.HotbarSize:
 		return lua.LString("size")
@@ -47,7 +47,7 @@ func pushHotbarParam(l *lua.LState, val mt.HotbarParam) lua.LValue {
 	return lua.LNil
 }
 
-func pushHUDField(l *lua.LState, val mt.HUDField) lua.LValue {
+func PushHUDField(l *lua.LState, val mt.HUDField) lua.LValue {
 	switch val {
 	case mt.HUDPos:
 		return lua.LString("pos")
@@ -80,7 +80,7 @@ func pushHUDField(l *lua.LState, val mt.HUDField) lua.LValue {
 	return lua.LNil
 }
 
-func pushHUDType(l *lua.LState, val mt.HUDType) lua.LValue {
+func PushHUDType(l *lua.LState, val mt.HUDType) lua.LValue {
 	switch val {
 	case mt.ImgHUD:
 		return lua.LString("img")
@@ -99,7 +99,7 @@ func pushHUDType(l *lua.LState, val mt.HUDType) lua.LValue {
 	return lua.LNil
 }
 
-func pushKickReason(l *lua.LState, val mt.KickReason) lua.LValue {
+func PushKickReason(l *lua.LState, val mt.KickReason) lua.LValue {
 	switch val {
 	case mt.WrongPasswd:
 		return lua.LString("wrong_passwd")
@@ -132,7 +132,7 @@ func pushKickReason(l *lua.LState, val mt.KickReason) lua.LValue {
 	return lua.LNil
 }
 
-func pushModChanSig(l *lua.LState, val mt.ModChanSig) lua.LValue {
+func PushModChanSig(l *lua.LState, val mt.ModChanSig) lua.LValue {
 	switch val {
 	case mt.JoinOK:
 		return lua.LString("join_ok")
@@ -151,7 +151,7 @@ func pushModChanSig(l *lua.LState, val mt.ModChanSig) lua.LValue {
 	return lua.LNil
 }
 
-func pushPlayerListUpdateType(l *lua.LState, val mt.PlayerListUpdateType) lua.LValue {
+func PushPlayerListUpdateType(l *lua.LState, val mt.PlayerListUpdateType) lua.LValue {
 	switch val {
 	case mt.InitPlayers:
 		return lua.LString("init")
@@ -164,7 +164,7 @@ func pushPlayerListUpdateType(l *lua.LState, val mt.PlayerListUpdateType) lua.LV
 	return lua.LNil
 }
 
-func pushSoundSrcType(l *lua.LState, val mt.SoundSrcType) lua.LValue {
+func PushSoundSrcType(l *lua.LState, val mt.SoundSrcType) lua.LValue {
 	switch val {
 	case mt.NoSrc:
 		return lua.LNil
@@ -177,86 +177,76 @@ func pushSoundSrcType(l *lua.LState, val mt.SoundSrcType) lua.LValue {
 	return lua.LNil
 }
 
-func pushAuthMethods(l *lua.LState, val mt.AuthMethods) lua.LValue {
+func PushAuthMethods(l *lua.LState, val mt.AuthMethods) lua.LValue {
 	tbl := l.NewTable()
-	if val&mt.LegacyPasswd != 0 {
-		l.SetField(tbl, "legacy_passwd", lua.LTrue)
-	}
-	if val&mt.SRP != 0 {
-		l.SetField(tbl, "srp", lua.LTrue)
-	}
-	if val&mt.FirstSRP != 0 {
-		l.SetField(tbl, "first_srp", lua.LTrue)
-	}
+	l.SetField(tbl, "legacy_passwd", lua.LBool(val&mt.LegacyPasswd != 0))
+	l.SetField(tbl, "srp", lua.LBool(val&mt.SRP != 0))
+	l.SetField(tbl, "first_srp", lua.LBool(val&mt.FirstSRP != 0))
 	return tbl
 }
 
-func pushCSMRestrictionFlags(l *lua.LState, val mt.CSMRestrictionFlags) lua.LValue {
+func PushCSMRestrictionFlags(l *lua.LState, val mt.CSMRestrictionFlags) lua.LValue {
 	tbl := l.NewTable()
-	if val&mt.NoCSMs != 0 {
-		l.SetField(tbl, "no_csms", lua.LTrue)
-	}
-	if val&mt.NoChatMsgs != 0 {
-		l.SetField(tbl, "no_chat_msgs", lua.LTrue)
-	}
-	if val&mt.NoNodeDefs != 0 {
-		l.SetField(tbl, "no_node_defs", lua.LTrue)
-	}
-	if val&mt.LimitMapRange != 0 {
-		l.SetField(tbl, "limit_map_range", lua.LTrue)
-	}
-	if val&mt.NoPlayerList != 0 {
-		l.SetField(tbl, "no_player_list", lua.LTrue)
-	}
+	l.SetField(tbl, "no_csms", lua.LBool(val&mt.NoCSMs != 0))
+	l.SetField(tbl, "no_chat_msgs", lua.LBool(val&mt.NoChatMsgs != 0))
+	l.SetField(tbl, "no_node_defs", lua.LBool(val&mt.NoNodeDefs != 0))
+	l.SetField(tbl, "limit_map_range", lua.LBool(val&mt.LimitMapRange != 0))
+	l.SetField(tbl, "no_player_list", lua.LBool(val&mt.NoPlayerList != 0))
 	return tbl
 }
 
-func pushHUDFlags(l *lua.LState, val mt.HUDFlags) lua.LValue {
+func PushHUDFlags(l *lua.LState, val mt.HUDFlags) lua.LValue {
 	tbl := l.NewTable()
-	if val&mt.ShowHotbar != 0 {
-		l.SetField(tbl, "hotbar", lua.LTrue)
-	}
-	if val&mt.ShowHealthBar != 0 {
-		l.SetField(tbl, "health_bar", lua.LTrue)
-	}
-	if val&mt.ShowCrosshair != 0 {
-		l.SetField(tbl, "crosshair", lua.LTrue)
-	}
-	if val&mt.ShowWieldedItem != 0 {
-		l.SetField(tbl, "wielded_item", lua.LTrue)
-	}
-	if val&mt.ShowBreathBar != 0 {
-		l.SetField(tbl, "breath_bar", lua.LTrue)
-	}
-	if val&mt.ShowMinimap != 0 {
-		l.SetField(tbl, "minimap", lua.LTrue)
-	}
-	if val&mt.ShowRadarMinimap != 0 {
-		l.SetField(tbl, "radar_minimap", lua.LTrue)
-	}
+	l.SetField(tbl, "hotbar", lua.LBool(val&mt.ShowHotbar != 0))
+	l.SetField(tbl, "health_bar", lua.LBool(val&mt.ShowHealthBar != 0))
+	l.SetField(tbl, "crosshair", lua.LBool(val&mt.ShowCrosshair != 0))
+	l.SetField(tbl, "wielded_item", lua.LBool(val&mt.ShowWieldedItem != 0))
+	l.SetField(tbl, "breath_bar", lua.LBool(val&mt.ShowBreathBar != 0))
+	l.SetField(tbl, "minimap", lua.LBool(val&mt.ShowMinimap != 0))
+	l.SetField(tbl, "radar_minimap", lua.LBool(val&mt.ShowRadarMinimap != 0))
+	return tbl
+}
+
+func PushMapBlkFlags(l *lua.LState, val mt.MapBlkFlags) lua.LValue {
+	tbl := l.NewTable()
+	l.SetField(tbl, "is_underground", lua.LBool(val&mt.BlkIsUnderground != 0))
+	l.SetField(tbl, "day_night_diff", lua.LBool(val&mt.BlkDayNightDiff != 0))
+	l.SetField(tbl, "light_expired", lua.LBool(val&mt.BlkLightExpired != 0))
+	l.SetField(tbl, "not_generated", lua.LBool(val&mt.BlkNotGenerated != 0))
 	return tbl
 }
 
-func pushHUD(l *lua.LState, val mt.HUD) lua.LValue {
+func PushHUD(l *lua.LState, val mt.HUD) lua.LValue {
 	tbl := l.NewTable()
-	l.SetField(tbl, "align", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Align[0]), lua.LNumber(val.Align[1])}))
+	l.SetField(tbl, "align", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Align[0]), lua.LNumber(val.Align[1])}))
 	l.SetField(tbl, "dir", lua.LNumber(val.Dir))
 	l.SetField(tbl, "item", lua.LNumber(val.Item))
 	l.SetField(tbl, "name", lua.LString(string(val.Name)))
 	l.SetField(tbl, "number", lua.LNumber(val.Number))
-	l.SetField(tbl, "offset", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Offset[0]), lua.LNumber(val.Offset[1])}))
-	l.SetField(tbl, "pos", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1])}))
-	l.SetField(tbl, "scale", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Scale[0]), lua.LNumber(val.Scale[1])}))
-	l.SetField(tbl, "size", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
+	l.SetField(tbl, "offset", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Offset[0]), lua.LNumber(val.Offset[1])}))
+	l.SetField(tbl, "pos", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1])}))
+	l.SetField(tbl, "scale", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Scale[0]), lua.LNumber(val.Scale[1])}))
+	l.SetField(tbl, "size", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
 	l.SetField(tbl, "text", lua.LString(string(val.Text)))
 	l.SetField(tbl, "text_2", lua.LString(string(val.Text2)))
-	l.SetField(tbl, "type", pushHUDType(l, val.Type))
-	l.SetField(tbl, "world_pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.WorldPos[0]), lua.LNumber(val.WorldPos[1]), lua.LNumber(val.WorldPos[2])}))
+	l.SetField(tbl, "type", PushHUDType(l, val.Type))
+	l.SetField(tbl, "world_pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.WorldPos[0]), lua.LNumber(val.WorldPos[1]), lua.LNumber(val.WorldPos[2])}))
 	l.SetField(tbl, "z_index", lua.LNumber(val.ZIndex))
 	return tbl
 }
 
-func pushNode(l *lua.LState, val mt.Node) lua.LValue {
+func PushMapBlk(l *lua.LState, val mt.MapBlk) lua.LValue {
+	tbl := l.NewTable()
+	l.SetField(tbl, "flags", PushMapBlkFlags(l, val.Flags))
+	l.SetField(tbl, "lit_from", lua.LNumber(val.LitFrom))
+	l.SetField(tbl, "node_metas", PushNodeMetas(l, val.NodeMetas))
+	l.SetField(tbl, "param0", Push4096[mt.Content](l, val.Param0))
+	l.SetField(tbl, "param1", Push4096[uint8](l, val.Param1))
+	l.SetField(tbl, "param2", Push4096[uint8](l, val.Param2))
+	return tbl
+}
+
+func PushNode(l *lua.LState, val mt.Node) lua.LValue {
 	tbl := l.NewTable()
 	l.SetField(tbl, "param0", lua.LNumber(val.Param0))
 	l.SetField(tbl, "param1", lua.LNumber(val.Param1))
@@ -264,12 +254,29 @@ func pushNode(l *lua.LState, val mt.Node) lua.LValue {
 	return tbl
 }
 
-func pushTileAnim(l *lua.LState, val mt.TileAnim) lua.LValue {
+func PushNodeMeta(l *lua.LState, val mt.NodeMeta) lua.LValue {
+	tbl := l.NewTable()
+	l.SetField(tbl, "fields", PushNodeMetaFields(l, val.Fields))
+	l.SetField(tbl, "inv", PushInv(l, val.Inv))
+	return tbl
+}
+
+func PushTileAnim(l *lua.LState, val mt.TileAnim) lua.LValue {
 	tbl := l.NewTable()
-	l.SetField(tbl, "aspect_ratio", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.AspectRatio[0]), lua.LNumber(val.AspectRatio[1])}))
+	l.SetField(tbl, "aspect_ratio", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.AspectRatio[0]), lua.LNumber(val.AspectRatio[1])}))
 	l.SetField(tbl, "duration", lua.LNumber(val.Duration))
-	l.SetField(tbl, "n_frames", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.NFrames[0]), lua.LNumber(val.NFrames[1])}))
-	l.SetField(tbl, "type", pushAnimType(l, val.Type))
+	l.SetField(tbl, "n_frames", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.NFrames[0]), lua.LNumber(val.NFrames[1])}))
+	l.SetField(tbl, "type", PushAnimType(l, val.Type))
+	return tbl
+}
+
+func PushToolCaps(l *lua.LState, val mt.ToolCaps) lua.LValue {
+	tbl := l.NewTable()
+	l.SetField(tbl, "attack_cooldown", lua.LNumber(val.AttackCooldown))
+	l.SetField(tbl, "dmg_groups", PushGroups(l, val.DmgGroups))
+	l.SetField(tbl, "group_caps", PushGroupCaps(l, val.GroupCaps))
+	l.SetField(tbl, "max_drop_lvl", lua.LNumber(val.MaxDropLvl))
+	l.SetField(tbl, "punch_uses", lua.LNumber(val.PunchUses))
 	return tbl
 }
 
@@ -405,49 +412,50 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 	switch val := pkt.Cmd.(type) {
 	case *mt.ToCltAcceptAuth:
 		l.SetField(tbl, "map_seed", lua.LNumber(val.MapSeed))
-		l.SetField(tbl, "player_pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.PlayerPos[0]), lua.LNumber(val.PlayerPos[1]), lua.LNumber(val.PlayerPos[2])}))
+		l.SetField(tbl, "player_pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.PlayerPos[0]), lua.LNumber(val.PlayerPos[1]), lua.LNumber(val.PlayerPos[2])}))
 		l.SetField(tbl, "send_interval", lua.LNumber(val.SendInterval))
-		l.SetField(tbl, "sudo_auth_methods", pushAuthMethods(l, val.SudoAuthMethods))
+		l.SetField(tbl, "sudo_auth_methods", PushAuthMethods(l, val.SudoAuthMethods))
 	case *mt.ToCltAddHUD:
-		l.SetField(tbl, "hud", pushHUD(l, val.HUD))
+		l.SetField(tbl, "hud", PushHUD(l, val.HUD))
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
 	case *mt.ToCltAddNode:
 		l.SetField(tbl, "keep_meta", lua.LBool(val.KeepMeta))
-		l.SetField(tbl, "node", pushNode(l, val.Node))
-		l.SetField(tbl, "pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
+		l.SetField(tbl, "node", PushNode(l, val.Node))
+		l.SetField(tbl, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
 	case *mt.ToCltAddParticleSpawner:
-		l.SetField(tbl, "acc", pushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Acc[0][0]), lua.LNumber(val.Acc[0][1]), lua.LNumber(val.Acc[0][2])}, {lua.LNumber(val.Acc[1][0]), lua.LNumber(val.Acc[1][1]), lua.LNumber(val.Acc[1][2])}}))
+		l.SetField(tbl, "acc", PushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Acc[0][0]), lua.LNumber(val.Acc[0][1]), lua.LNumber(val.Acc[0][2])}, {lua.LNumber(val.Acc[1][0]), lua.LNumber(val.Acc[1][1]), lua.LNumber(val.Acc[1][2])}}))
 		l.SetField(tbl, "amount", lua.LNumber(val.Amount))
-		l.SetField(tbl, "anim_params", pushTileAnim(l, val.AnimParams))
+		l.SetField(tbl, "anim_params", PushTileAnim(l, val.AnimParams))
 		l.SetField(tbl, "ao_collision", lua.LBool(val.AOCollision))
 		l.SetField(tbl, "collide", lua.LBool(val.Collide))
 		l.SetField(tbl, "collision_rm", lua.LBool(val.CollisionRm))
 		l.SetField(tbl, "duration", lua.LNumber(val.Duration))
-		l.SetField(tbl, "expiration_time", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.ExpirationTime[0]), lua.LNumber(val.ExpirationTime[1])}))
+		l.SetField(tbl, "expiration_time", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.ExpirationTime[0]), lua.LNumber(val.ExpirationTime[1])}))
 		l.SetField(tbl, "glow", lua.LNumber(val.Glow))
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
 		l.SetField(tbl, "node_param0", lua.LNumber(val.NodeParam0))
 		l.SetField(tbl, "node_param2", lua.LNumber(val.NodeParam2))
 		l.SetField(tbl, "node_tile", lua.LNumber(val.NodeTile))
-		l.SetField(tbl, "pos", pushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Pos[0][0]), lua.LNumber(val.Pos[0][1]), lua.LNumber(val.Pos[0][2])}, {lua.LNumber(val.Pos[1][0]), lua.LNumber(val.Pos[1][1]), lua.LNumber(val.Pos[1][2])}}))
-		l.SetField(tbl, "size", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
+		l.SetField(tbl, "pos", PushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Pos[0][0]), lua.LNumber(val.Pos[0][1]), lua.LNumber(val.Pos[0][2])}, {lua.LNumber(val.Pos[1][0]), lua.LNumber(val.Pos[1][1]), lua.LNumber(val.Pos[1][2])}}))
+		l.SetField(tbl, "size", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
 		l.SetField(tbl, "texture", lua.LString(string(val.Texture)))
-		l.SetField(tbl, "vel", pushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Vel[0][0]), lua.LNumber(val.Vel[0][1]), lua.LNumber(val.Vel[0][2])}, {lua.LNumber(val.Vel[1][0]), lua.LNumber(val.Vel[1][1]), lua.LNumber(val.Vel[1][2])}}))
+		l.SetField(tbl, "vel", PushBox3(l, [2][3]lua.LNumber{{lua.LNumber(val.Vel[0][0]), lua.LNumber(val.Vel[0][1]), lua.LNumber(val.Vel[0][2])}, {lua.LNumber(val.Vel[1][0]), lua.LNumber(val.Vel[1][1]), lua.LNumber(val.Vel[1][2])}}))
 		l.SetField(tbl, "vertical", lua.LBool(val.Vertical))
 	case *mt.ToCltAddPlayerVel:
-		l.SetField(tbl, "vel", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Vel[0]), lua.LNumber(val.Vel[1]), lua.LNumber(val.Vel[2])}))
+		l.SetField(tbl, "vel", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Vel[0]), lua.LNumber(val.Vel[1]), lua.LNumber(val.Vel[2])}))
 	case *mt.ToCltBlkData:
-		l.SetField(tbl, "blkpos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Blkpos[0]), lua.LNumber(val.Blkpos[1]), lua.LNumber(val.Blkpos[2])}))
+		l.SetField(tbl, "blk", PushMapBlk(l, val.Blk))
+		l.SetField(tbl, "blkpos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Blkpos[0]), lua.LNumber(val.Blkpos[1]), lua.LNumber(val.Blkpos[2])}))
 	case *mt.ToCltBreath:
 		l.SetField(tbl, "breath", lua.LNumber(val.Breath))
 	case *mt.ToCltChangeHUD:
 		if val.Field == mt.HUDAlign {
-			l.SetField(tbl, "align", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Align[0]), lua.LNumber(val.Align[1])}))
+			l.SetField(tbl, "align", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Align[0]), lua.LNumber(val.Align[1])}))
 		}
 		if val.Field == mt.HUDDir {
 			l.SetField(tbl, "dir", lua.LNumber(val.Dir))
 		}
-		l.SetField(tbl, "field", pushHUDField(l, val.Field))
+		l.SetField(tbl, "field", PushHUDField(l, val.Field))
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
 		if val.Field == mt.HUDItem {
 			l.SetField(tbl, "item", lua.LNumber(val.Item))
@@ -459,13 +467,13 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 			l.SetField(tbl, "number", lua.LNumber(val.Number))
 		}
 		if val.Field == mt.HUDOffset {
-			l.SetField(tbl, "offset", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Offset[0]), lua.LNumber(val.Offset[1])}))
+			l.SetField(tbl, "offset", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Offset[0]), lua.LNumber(val.Offset[1])}))
 		}
 		if val.Field == mt.HUDPos {
-			l.SetField(tbl, "pos", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1])}))
+			l.SetField(tbl, "pos", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1])}))
 		}
 		if val.Field == mt.HUDSize {
-			l.SetField(tbl, "size", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
+			l.SetField(tbl, "size", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Size[0]), lua.LNumber(val.Size[1])}))
 		}
 		if val.Field == mt.HUDText {
 			l.SetField(tbl, "text", lua.LString(string(val.Text)))
@@ -474,7 +482,7 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 			l.SetField(tbl, "text_2", lua.LString(string(val.Text2)))
 		}
 		if val.Field == mt.HUDWorldPos {
-			l.SetField(tbl, "world_pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.WorldPos[0]), lua.LNumber(val.WorldPos[1]), lua.LNumber(val.WorldPos[2])}))
+			l.SetField(tbl, "world_pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.WorldPos[0]), lua.LNumber(val.WorldPos[1]), lua.LNumber(val.WorldPos[2])}))
 		}
 		if val.Field == mt.HUDZIndex {
 			l.SetField(tbl, "z_index", lua.LNumber(val.ZIndex))
@@ -483,19 +491,19 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "sender", lua.LString(string(val.Sender)))
 		l.SetField(tbl, "text", lua.LString(string(val.Text)))
 		l.SetField(tbl, "timestamp", lua.LNumber(val.Timestamp))
-		l.SetField(tbl, "type", pushChatMsgType(l, val.Type))
+		l.SetField(tbl, "type", PushChatMsgType(l, val.Type))
 	case *mt.ToCltCloudParams:
-		l.SetField(tbl, "ambient_color", pushColor(l, val.AmbientColor))
+		l.SetField(tbl, "ambient_color", PushColor(l, val.AmbientColor))
 		l.SetField(tbl, "density", lua.LNumber(val.Density))
-		l.SetField(tbl, "diffuse_color", pushColor(l, val.DiffuseColor))
+		l.SetField(tbl, "diffuse_color", PushColor(l, val.DiffuseColor))
 		l.SetField(tbl, "height", lua.LNumber(val.Height))
-		l.SetField(tbl, "speed", pushVec2(l, [2]lua.LNumber{lua.LNumber(val.Speed[0]), lua.LNumber(val.Speed[1])}))
+		l.SetField(tbl, "speed", PushVec2(l, [2]lua.LNumber{lua.LNumber(val.Speed[0]), lua.LNumber(val.Speed[1])}))
 		l.SetField(tbl, "thickness", lua.LNumber(val.Thickness))
 	case *mt.ToCltCSMRestrictionFlags:
-		l.SetField(tbl, "flags", pushCSMRestrictionFlags(l, val.Flags))
+		l.SetField(tbl, "flags", PushCSMRestrictionFlags(l, val.Flags))
 		l.SetField(tbl, "map_range", lua.LNumber(val.MapRange))
 	case *mt.ToCltDeathScreen:
-		l.SetField(tbl, "point_at", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.PointAt[0]), lua.LNumber(val.PointAt[1]), lua.LNumber(val.PointAt[2])}))
+		l.SetField(tbl, "point_at", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.PointAt[0]), lua.LNumber(val.PointAt[1]), lua.LNumber(val.PointAt[2])}))
 		l.SetField(tbl, "point_cam", lua.LBool(val.PointCam))
 	case *mt.ToCltDelParticleSpawner:
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
@@ -505,8 +513,8 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "len", lua.LNumber(val.Len))
 		l.SetField(tbl, "name", lua.LString(string(val.Name)))
 	case *mt.ToCltEyeOffset:
-		l.SetField(tbl, "first", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.First[0]), lua.LNumber(val.First[1]), lua.LNumber(val.First[2])}))
-		l.SetField(tbl, "third", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Third[0]), lua.LNumber(val.Third[1]), lua.LNumber(val.Third[2])}))
+		l.SetField(tbl, "first", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.First[0]), lua.LNumber(val.First[1]), lua.LNumber(val.First[2])}))
+		l.SetField(tbl, "third", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Third[0]), lua.LNumber(val.Third[1]), lua.LNumber(val.Third[2])}))
 	case *mt.ToCltFadeSound:
 		l.SetField(tbl, "gain", lua.LNumber(val.Gain))
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
@@ -518,7 +526,7 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "multiplier", lua.LBool(val.Multiplier))
 		l.SetField(tbl, "transition_time", lua.LNumber(val.TransitionTime))
 	case *mt.ToCltHello:
-		l.SetField(tbl, "auth_methods", pushAuthMethods(l, val.AuthMethods))
+		l.SetField(tbl, "auth_methods", PushAuthMethods(l, val.AuthMethods))
 		l.SetField(tbl, "compression", lua.LNumber(val.Compression))
 		l.SetField(tbl, "proto_ver", lua.LNumber(val.ProtoVer))
 		l.SetField(tbl, "serialize_ver", lua.LNumber(val.SerializeVer))
@@ -526,8 +534,8 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 	case *mt.ToCltHP:
 		l.SetField(tbl, "hp", lua.LNumber(val.HP))
 	case *mt.ToCltHUDFlags:
-		l.SetField(tbl, "flags", pushHUDFlags(l, val.Flags))
-		l.SetField(tbl, "mask", pushHUDFlags(l, val.Mask))
+		l.SetField(tbl, "flags", PushHUDFlags(l, val.Flags))
+		l.SetField(tbl, "mask", PushHUDFlags(l, val.Mask))
 	case *mt.ToCltInv:
 		l.SetField(tbl, "inv", lua.LString(string(val.Inv)))
 	case *mt.ToCltInvFormspec:
@@ -536,18 +544,18 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		if val.Reason == mt.Custom || val.Reason == mt.Shutdown || val.Reason == mt.Crash {
 			l.SetField(tbl, "custom", lua.LString(string(val.Custom)))
 		}
-		l.SetField(tbl, "reason", pushKickReason(l, val.Reason))
+		l.SetField(tbl, "reason", PushKickReason(l, val.Reason))
 		if val.Reason == mt.Shutdown || val.Reason == mt.Crash {
 			l.SetField(tbl, "reconnect", lua.LBool(val.Reconnect))
 		}
 	case *mt.ToCltLegacyKick:
 		l.SetField(tbl, "reason", lua.LString(string(val.Reason)))
 	case *mt.ToCltLocalPlayerAnim:
-		l.SetField(tbl, "dig", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.Dig[0]), lua.LNumber(val.Dig[1])}))
-		l.SetField(tbl, "idle", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.Idle[0]), lua.LNumber(val.Idle[1])}))
+		l.SetField(tbl, "dig", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.Dig[0]), lua.LNumber(val.Dig[1])}))
+		l.SetField(tbl, "idle", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.Idle[0]), lua.LNumber(val.Idle[1])}))
 		l.SetField(tbl, "speed", lua.LNumber(val.Speed))
-		l.SetField(tbl, "walk", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.Walk[0]), lua.LNumber(val.Walk[1])}))
-		l.SetField(tbl, "walk_dig", pushBox1(l, [2]lua.LNumber{lua.LNumber(val.WalkDig[0]), lua.LNumber(val.WalkDig[1])}))
+		l.SetField(tbl, "walk", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.Walk[0]), lua.LNumber(val.Walk[1])}))
+		l.SetField(tbl, "walk_dig", PushBox1(l, [2]lua.LNumber{lua.LNumber(val.WalkDig[0]), lua.LNumber(val.WalkDig[1])}))
 	case *mt.ToCltMediaPush:
 		l.SetField(tbl, "data", lua.LString(string(val.Data)))
 		l.SetField(tbl, "filename", lua.LString(string(val.Filename)))
@@ -559,7 +567,7 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "sender", lua.LString(string(val.Sender)))
 	case *mt.ToCltModChanSig:
 		l.SetField(tbl, "channel", lua.LString(string(val.Channel)))
-		l.SetField(tbl, "signal", pushModChanSig(l, val.Signal))
+		l.SetField(tbl, "signal", PushModChanSig(l, val.Signal))
 	case *mt.ToCltMoonParams:
 		l.SetField(tbl, "size", lua.LNumber(val.Size))
 		l.SetField(tbl, "texture", lua.LString(string(val.Texture)))
@@ -567,7 +575,7 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "visible", lua.LBool(val.Visible))
 	case *mt.ToCltMovePlayer:
 		l.SetField(tbl, "pitch", lua.LNumber(val.Pitch))
-		l.SetField(tbl, "pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
+		l.SetField(tbl, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
 		l.SetField(tbl, "yaw", lua.LNumber(val.Yaw))
 	case *mt.ToCltMovement:
 		l.SetField(tbl, "air_accel", lua.LNumber(val.AirAccel))
@@ -582,6 +590,8 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "sink", lua.LNumber(val.Sink))
 		l.SetField(tbl, "smoothing", lua.LNumber(val.Smoothing))
 		l.SetField(tbl, "walk_speed", lua.LNumber(val.WalkSpeed))
+	case *mt.ToCltNodeMetasChanged:
+		l.SetField(tbl, "changed", PushChangedNodeMetas(l, val.Changed))
 	case *mt.ToCltOverrideDayNightRatio:
 		l.SetField(tbl, "override", lua.LBool(val.Override))
 		l.SetField(tbl, "ratio", lua.LNumber(val.Ratio))
@@ -593,56 +603,56 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "loop", lua.LBool(val.Loop))
 		l.SetField(tbl, "name", lua.LString(string(val.Name)))
 		l.SetField(tbl, "pitch", lua.LNumber(val.Pitch))
-		l.SetField(tbl, "pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
+		l.SetField(tbl, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
 		l.SetField(tbl, "src_aoid", lua.LNumber(val.SrcAOID))
-		l.SetField(tbl, "src_type", pushSoundSrcType(l, val.SrcType))
+		l.SetField(tbl, "src_type", PushSoundSrcType(l, val.SrcType))
 	case *mt.ToCltPrivs:
-		l.SetField(tbl, "privs", pushStringSet(l, val.Privs))
+		l.SetField(tbl, "privs", PushStringSet(l, val.Privs))
 	case *mt.ToCltRemoveNode:
-		l.SetField(tbl, "pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
+		l.SetField(tbl, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
 	case *mt.ToCltRmHUD:
 		l.SetField(tbl, "id", lua.LNumber(val.ID))
 	case *mt.ToCltSetHotbarParam:
 		l.SetField(tbl, "img", lua.LString(string(val.Img)))
-		l.SetField(tbl, "param", pushHotbarParam(l, val.Param))
+		l.SetField(tbl, "param", PushHotbarParam(l, val.Param))
 		l.SetField(tbl, "size", lua.LNumber(val.Size))
 	case *mt.ToCltShowFormspec:
 		l.SetField(tbl, "formname", lua.LString(string(val.Formname)))
 		l.SetField(tbl, "formspec", lua.LString(string(val.Formspec)))
 	case *mt.ToCltSkyParams:
-		l.SetField(tbl, "bg_color", pushColor(l, val.BgColor))
+		l.SetField(tbl, "bg_color", PushColor(l, val.BgColor))
 		l.SetField(tbl, "clouds", lua.LBool(val.Clouds))
 		if val.Type == "regular" {
-			l.SetField(tbl, "dawn_horizon", pushColor(l, val.DawnHorizon))
+			l.SetField(tbl, "dawn_horizon", PushColor(l, val.DawnHorizon))
 		}
 		if val.Type == "regular" {
-			l.SetField(tbl, "dawn_sky", pushColor(l, val.DawnSky))
+			l.SetField(tbl, "dawn_sky", PushColor(l, val.DawnSky))
 		}
 		if val.Type == "regular" {
-			l.SetField(tbl, "day_horizon", pushColor(l, val.DayHorizon))
+			l.SetField(tbl, "day_horizon", PushColor(l, val.DayHorizon))
 		}
 		if val.Type == "regular" {
-			l.SetField(tbl, "day_sky", pushColor(l, val.DaySky))
+			l.SetField(tbl, "day_sky", PushColor(l, val.DaySky))
 		}
 		l.SetField(tbl, "fog_tint_type", lua.LString(string(val.FogTintType)))
 		if val.Type == "regular" {
-			l.SetField(tbl, "indoor", pushColor(l, val.Indoor))
+			l.SetField(tbl, "indoor", PushColor(l, val.Indoor))
 		}
-		l.SetField(tbl, "moon_fog_tint", pushColor(l, val.MoonFogTint))
+		l.SetField(tbl, "moon_fog_tint", PushColor(l, val.MoonFogTint))
 		if val.Type == "regular" {
-			l.SetField(tbl, "night_horizon", pushColor(l, val.NightHorizon))
+			l.SetField(tbl, "night_horizon", PushColor(l, val.NightHorizon))
 		}
 		if val.Type == "regular" {
-			l.SetField(tbl, "night_sky", pushColor(l, val.NightSky))
+			l.SetField(tbl, "night_sky", PushColor(l, val.NightSky))
 		}
-		l.SetField(tbl, "sun_fog_tint", pushColor(l, val.SunFogTint))
+		l.SetField(tbl, "sun_fog_tint", PushColor(l, val.SunFogTint))
 		if val.Type == "skybox" {
-			l.SetField(tbl, "textures", pushTextureList(l, val.Textures))
+			l.SetField(tbl, "textures", PushStringList[mt.Texture](l, val.Textures))
 		}
 		l.SetField(tbl, "type", lua.LString(string(val.Type)))
 	case *mt.ToCltSpawnParticle:
-		l.SetField(tbl, "acc", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Acc[0]), lua.LNumber(val.Acc[1]), lua.LNumber(val.Acc[2])}))
-		l.SetField(tbl, "anim_params", pushTileAnim(l, val.AnimParams))
+		l.SetField(tbl, "acc", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Acc[0]), lua.LNumber(val.Acc[1]), lua.LNumber(val.Acc[2])}))
+		l.SetField(tbl, "anim_params", PushTileAnim(l, val.AnimParams))
 		l.SetField(tbl, "ao_collision", lua.LBool(val.AOCollision))
 		l.SetField(tbl, "collide", lua.LBool(val.Collide))
 		l.SetField(tbl, "collision_rm", lua.LBool(val.CollisionRm))
@@ -651,16 +661,16 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "node_param0", lua.LNumber(val.NodeParam0))
 		l.SetField(tbl, "node_param2", lua.LNumber(val.NodeParam2))
 		l.SetField(tbl, "node_tile", lua.LNumber(val.NodeTile))
-		l.SetField(tbl, "pos", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
+		l.SetField(tbl, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Pos[0]), lua.LNumber(val.Pos[1]), lua.LNumber(val.Pos[2])}))
 		l.SetField(tbl, "size", lua.LNumber(val.Size))
 		l.SetField(tbl, "texture", lua.LString(string(val.Texture)))
-		l.SetField(tbl, "vel", pushVec3(l, [3]lua.LNumber{lua.LNumber(val.Vel[0]), lua.LNumber(val.Vel[1]), lua.LNumber(val.Vel[2])}))
+		l.SetField(tbl, "vel", PushVec3(l, [3]lua.LNumber{lua.LNumber(val.Vel[0]), lua.LNumber(val.Vel[1]), lua.LNumber(val.Vel[2])}))
 		l.SetField(tbl, "vertical", lua.LBool(val.Vertical))
 	case *mt.ToCltSRPBytesSaltB:
 		l.SetField(tbl, "b", lua.LString(string(val.B)))
 		l.SetField(tbl, "salt", lua.LString(string(val.Salt)))
 	case *mt.ToCltStarParams:
-		l.SetField(tbl, "color", pushColor(l, val.Color))
+		l.SetField(tbl, "color", PushColor(l, val.Color))
 		l.SetField(tbl, "count", lua.LNumber(val.Count))
 		l.SetField(tbl, "size", lua.LNumber(val.Size))
 		l.SetField(tbl, "visible", lua.LBool(val.Visible))
@@ -677,8 +687,8 @@ func PushPkt(l *lua.LState, pkt *mt.Pkt) lua.LValue {
 		l.SetField(tbl, "speed", lua.LNumber(val.Speed))
 		l.SetField(tbl, "time", lua.LNumber(val.Time))
 	case *mt.ToCltUpdatePlayerList:
-		l.SetField(tbl, "players", pushStringList(l, val.Players))
-		l.SetField(tbl, "type", pushPlayerListUpdateType(l, val.Type))
+		l.SetField(tbl, "players", PushStringList[string](l, val.Players))
+		l.SetField(tbl, "type", PushPlayerListUpdateType(l, val.Type))
 	}
 	return tbl
 }
diff --git a/convert/push_mkauto.lua b/convert/push_mkauto.lua
index 3e02932..df13198 100755
--- a/convert/push_mkauto.lua
+++ b/convert/push_mkauto.lua
@@ -5,7 +5,7 @@ local funcs = ""
 
 for name, fields in spairs(parse_spec("client/enum")) do
 	local camel = camel_case(name)
-	funcs = funcs .. "func push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\tswitch val {\n"
+	funcs = funcs .. "func Push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\tswitch val {\n"
 
 	for _, var in ipairs(fields) do
 		funcs = funcs .. "\tcase mt." .. apply_prefix(fields, var) .. ":\n\t\t" ..
@@ -17,11 +17,10 @@ end
 
 for name, fields in spairs(parse_spec("client/flag")) do
 	local camel = camel_case(name)
-	funcs = funcs .. "func push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\ttbl := l.NewTable()\n"
+	funcs = funcs .. "func Push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\ttbl := l.NewTable()\n"
 
 	for _, var in ipairs(fields) do
-		funcs = funcs .. "\tif val&mt." .. apply_prefix(fields, var)
-			.. " != 0 {\n\t\tl.SetField(tbl, \"" .. var  .. "\", lua.LTrue)\n\t}\n"
+		funcs = funcs .. "\tl.SetField(tbl, \"" .. var  .. "\", lua.LBool(val&mt." .. apply_prefix(fields, var) .. " != 0))\n"
 	end
 
 	funcs = funcs .. "\treturn tbl\n}\n\n"
@@ -32,22 +31,24 @@ local tolua = {
 	fixed_string = "lua.LString(string(VAL[:]))",
 	boolean = "lua.LBool(VAL)",
 	number = "lua.LNumber(VAL)",
-	vec2 = "pushVec2(l, [2]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1])})",
-	vec3 = "pushVec3(l, [3]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1]), lua.LNumber(VAL[2])})",
-	box1 = "pushBox1(l, [2]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1])})",
-	box2 = "pushBox2(l, [2][2]lua.LNumber{{lua.LNumber(VAL[0][0]), lua.LNumber(VAL[0][1])}, {lua.LNumber(VAL[1][0]), lua.LNumber(VAL[1][1])}})",
-	box3 = "pushBox3(l, [2][3]lua.LNumber{{lua.LNumber(VAL[0][0]), lua.LNumber(VAL[0][1]), lua.LNumber(VAL[0][2])}, {lua.LNumber(VAL[1][0]), lua.LNumber(VAL[1][1]), lua.LNumber(VAL[1][2])}})",
+	vec2 = "PushVec2(l, [2]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1])})",
+	vec3 = "PushVec3(l, [3]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1]), lua.LNumber(VAL[2])})",
+	box1 = "PushBox1(l, [2]lua.LNumber{lua.LNumber(VAL[0]), lua.LNumber(VAL[1])})",
+	box2 = "PushBox2(l, [2][2]lua.LNumber{{lua.LNumber(VAL[0][0]), lua.LNumber(VAL[0][1])}, {lua.LNumber(VAL[1][0]), lua.LNumber(VAL[1][1])}})",
+	box3 = "PushBox3(l, [2][3]lua.LNumber{{lua.LNumber(VAL[0][0]), lua.LNumber(VAL[0][1]), lua.LNumber(VAL[0][2])}, {lua.LNumber(VAL[1][0]), lua.LNumber(VAL[1][1]), lua.LNumber(VAL[1][2])}})",
 }
 
 local function fields_tolua(fields, indent)
 	local impl = ""
 
 	for name, type in spairs(fields) do
-		if name:sub(1, 1) ~= "{" then
+		local c = name:sub(1, 1)
+		if c ~= "{" and c ~= "%" then
 			local camel = "val." .. camel_case(name)
 
 			local idt = indent
 			local condition = fields["{" .. name .. "}"]
+			local typeparam = fields["%" .. name .. "%"]
 
 			if condition then
 				impl = impl .. indent .. "if " .. condition .. " {\n"
@@ -58,7 +59,9 @@ local function fields_tolua(fields, indent)
 			if tolua[type] then
 				impl = impl .. tolua[type]:gsub("VAL", camel)
 			else
-				impl = impl .. "push" .. camel_case(type) .. "(l, " .. camel .. ")"
+				impl = impl .. "Push" .. camel_case(type)
+					.. (typeparam and "[" .. typeparam .. "]" or "")
+					.. "(l, " .. camel .. ")"
 			end
 			impl = impl .. ")\n"
 
@@ -74,7 +77,7 @@ end
 for name, fields in spairs(parse_spec("client/struct", true)) do
 	local camel = camel_case(name)
 	funcs = funcs
-		.. "func push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\ttbl := l.NewTable()\n"
+		.. "func Push" .. camel .. "(l *lua.LState, val mt." .. camel .. ") lua.LValue {\n\ttbl := l.NewTable()\n"
 		.. fields_tolua(fields, "\t")
 		.. "\treturn tbl\n}\n\n"
 end
diff --git a/convert/push_static.go b/convert/push_static.go
index 4eb7cb0..75001a7 100644
--- a/convert/push_static.go
+++ b/convert/push_static.go
@@ -8,14 +8,14 @@ import (
 
 //go:generate ./push_mkauto.lua
 
-func vec2(l *lua.LState, val [2]lua.LNumber) {
+func CreateVec2(l *lua.LState, val [2]lua.LNumber) {
 	l.Push(l.GetGlobal("vec2"))
 	l.Push(val[0])
 	l.Push(val[1])
 	l.Call(2, 1)
 }
 
-func vec3(l *lua.LState, val [3]lua.LNumber) {
+func CreateVec3(l *lua.LState, val [3]lua.LNumber) {
 	l.Push(l.GetGlobal("vec3"))
 	l.Push(val[0])
 	l.Push(val[1])
@@ -29,17 +29,17 @@ func popValue(l *lua.LState) lua.LValue {
 	return ret
 }
 
-func pushVec2(l *lua.LState, val [2]lua.LNumber) lua.LValue {
-	vec2(l, val)
+func PushVec2(l *lua.LState, val [2]lua.LNumber) lua.LValue {
+	CreateVec2(l, val)
 	return popValue(l)
 }
 
-func pushVec3(l *lua.LState, val [3]lua.LNumber) lua.LValue {
-	vec3(l, val)
+func PushVec3(l *lua.LState, val [3]lua.LNumber) lua.LValue {
+	CreateVec3(l, val)
 	return popValue(l)
 }
 
-func pushBox1(l *lua.LState, val [2]lua.LNumber) lua.LValue {
+func PushBox1(l *lua.LState, val [2]lua.LNumber) lua.LValue {
 	l.Push(l.GetGlobal("box"))
 	l.Push(val[0])
 	l.Push(val[1])
@@ -47,23 +47,23 @@ func pushBox1(l *lua.LState, val [2]lua.LNumber) lua.LValue {
 	return popValue(l)
 }
 
-func pushBox2(l *lua.LState, val [2][2]lua.LNumber) lua.LValue {
+func PushBox2(l *lua.LState, val [2][2]lua.LNumber) lua.LValue {
 	l.Push(l.GetGlobal("box"))
-	vec2(l, val[0])
-	vec2(l, val[1])
+	CreateVec2(l, val[0])
+	CreateVec2(l, val[1])
 	l.Call(2, 1)
 	return popValue(l)
 }
 
-func pushBox3(l *lua.LState, val [2][3]lua.LNumber) lua.LValue {
+func PushBox3(l *lua.LState, val [2][3]lua.LNumber) lua.LValue {
 	l.Push(l.GetGlobal("box"))
-	vec3(l, val[0])
-	vec3(l, val[1])
+	CreateVec3(l, val[0])
+	CreateVec3(l, val[1])
 	l.Call(2, 1)
 	return popValue(l)
 }
 
-func pushColor(l *lua.LState, val color.NRGBA) lua.LValue {
+func PushColor(l *lua.LState, val color.NRGBA) lua.LValue {
 	tbl := l.NewTable()
 	l.SetField(tbl, "r", lua.LNumber(val.R))
 	l.SetField(tbl, "g", lua.LNumber(val.G))
@@ -72,7 +72,7 @@ func pushColor(l *lua.LState, val color.NRGBA) lua.LValue {
 	return tbl
 }
 
-func pushStringSet(l *lua.LState, val []string) lua.LValue {
+func PushStringSet(l *lua.LState, val []string) lua.LValue {
 	tbl := l.NewTable()
 	for _, str := range val {
 		l.SetField(tbl, str, lua.LTrue)
@@ -80,7 +80,7 @@ func pushStringSet(l *lua.LState, val []string) lua.LValue {
 	return tbl
 }
 
-func stringList[T ~string](l *lua.LState, val []T) lua.LValue {
+func PushStringList[T ~string](l *lua.LState, val []T) lua.LValue {
 	tbl := l.NewTable()
 	for _, s := range val {
 		tbl.Append(lua.LString(s))
@@ -88,10 +88,96 @@ func stringList[T ~string](l *lua.LState, val []T) lua.LValue {
 	return tbl
 }
 
-func pushStringList(l *lua.LState, val []string) lua.LValue {
-	return stringList[string](l, val)
+func Push4096[T uint8 | mt.Content](l *lua.LState, val [4096]T) lua.LValue {
+	tbl := l.NewTable()
+	for i, v := range val {
+		l.RawSetInt(tbl, i, lua.LNumber(v))
+	}
+	return tbl
+}
+
+func PushFields(l *lua.LState, val []mt.Field) lua.LValue {
+	tbl := l.NewTable()
+	for _, pair := range val {
+		l.SetField(tbl, pair.Name, lua.LString(pair.Value))
+	}
+	return tbl
+}
+
+func PushNodeMetaFields(l *lua.LState, val []mt.NodeMetaField) lua.LValue {
+	tbl := l.NewTable()
+	for _, pair := range val {
+		l.SetField(tbl, pair.Name, lua.LString(pair.Value))
+	}
+	return tbl
+}
+
+func PushInv(l *lua.LState, val mt.Inv) lua.LValue {
+	linv := l.NewTable()
+	for _, list := range val {
+		llist := l.NewTable()
+		l.SetField(llist, "width", lua.LNumber(list.Width))
+		for _, stack := range list.Stacks {
+			lmeta := l.NewTable()
+			l.SetField(lmeta, "fields", PushFields(l, stack.Fields()))
+			if toolcaps, ok := stack.ToolCaps(); ok {
+				l.SetField(lmeta, "tool_caps", PushToolCaps(l, toolcaps))
+			}
+
+			lstack := l.NewTable()
+			l.SetField(lstack, "name", lua.LString(stack.Name))
+			l.SetField(lstack, "count", lua.LNumber(stack.Count))
+			l.SetField(lstack, "wear", lua.LNumber(stack.Wear))
+			l.SetField(lstack, "meta", lmeta)
+
+			llist.Append(lstack)
+		}
+		l.SetField(linv, list.Name, llist)
+	}
+	return linv
+}
+
+func PushNodeMetas(l *lua.LState, val map[uint16]*mt.NodeMeta) lua.LValue {
+	tbl := l.NewTable()
+	for i, meta := range val {
+		l.RawSetInt(tbl, int(i), PushNodeMeta(l, *meta))
+	}
+	return tbl
+}
+
+func PushChangedNodeMetas(l *lua.LState, val map[[3]int16]*mt.NodeMeta) lua.LValue {
+	lmetas := l.NewTable()
+	for pos, meta := range val {
+		lmeta := l.NewTable()
+		l.SetField(lmeta, "pos", PushVec3(l, [3]lua.LNumber{lua.LNumber(pos[0]), lua.LNumber(pos[1]), lua.LNumber(pos[2])}))
+		l.SetField(lmeta, "meta", PushNodeMeta(l, *meta))
+		lmetas.Append(lmeta)
+	}
+	return lmetas
 }
 
-func pushTextureList(l *lua.LState, val []mt.Texture) lua.LValue {
-	return stringList[mt.Texture](l, val)
+func PushGroups(l *lua.LState, val []mt.Group) lua.LValue {
+	tbl := l.NewTable()
+	for _, group := range val {
+		l.SetField(tbl, group.Name, lua.LNumber(group.Rating))
+	}
+	return tbl
+}
+
+func PushGroupCaps(l *lua.LState, val []mt.ToolGroupCap) lua.LValue {
+	lcaps := l.NewTable()
+	for _, groupcap := range val {
+		ltimes := l.NewTable()
+		for _, digtime := range groupcap.Times {
+			l.RawSetInt(ltimes, int(digtime.Rating), lua.LNumber(digtime.Time))
+		}
+
+		lcap := l.NewTable()
+		l.SetField(lcap, "uses", lua.LNumber(groupcap.Uses))
+		l.SetField(lcap, "max_lvl", lua.LNumber(groupcap.MaxLvl))
+		l.SetField(lcap, "times", ltimes)
+
+		l.SetField(lcaps, groupcap.Name, lcap)
+	}
+	return lcaps
 }
diff --git a/convert/read_auto.go b/convert/read_auto.go
index c5a39be..efb3d62 100644
--- a/convert/read_auto.go
+++ b/convert/read_auto.go
@@ -4,37 +4,38 @@ package convert
 import (
 	"github.com/anon55555/mt"
 	"github.com/yuin/gopher-lua"
+	"math"
 )
 
-func readAOID(l *lua.LState, val lua.LValue, ptr *mt.AOID) {
+func ReadAOID(l *lua.LState, val lua.LValue, ptr *mt.AOID) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for AOID: must be a number")
 	}
-	*ptr = mt.AOID(val.(lua.LNumber))
+	*ptr = mt.AOID(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readCompressionModes(l *lua.LState, val lua.LValue, ptr *mt.CompressionModes) {
+func ReadCompressionModes(l *lua.LState, val lua.LValue, ptr *mt.CompressionModes) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for CompressionModes: must be a number")
 	}
-	*ptr = mt.CompressionModes(val.(lua.LNumber))
+	*ptr = mt.CompressionModes(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readInt16(l *lua.LState, val lua.LValue, ptr *int16) {
+func ReadInt16(l *lua.LState, val lua.LValue, ptr *int16) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for int16: must be a number")
 	}
-	*ptr = int16(val.(lua.LNumber))
+	*ptr = int16(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readInt32(l *lua.LState, val lua.LValue, ptr *int32) {
+func ReadInt32(l *lua.LState, val lua.LValue, ptr *int32) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for int32: must be a number")
 	}
-	*ptr = int32(val.(lua.LNumber))
+	*ptr = int32(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readInteraction(l *lua.LState, val lua.LValue, ptr *mt.Interaction) {
+func ReadInteraction(l *lua.LState, val lua.LValue, ptr *mt.Interaction) {
 	if val.Type() != lua.LTString {
 		panic("invalid value for Interaction: must be a string")
 	}
@@ -57,7 +58,7 @@ func readInteraction(l *lua.LState, val lua.LValue, ptr *mt.Interaction) {
 	}
 }
 
-func readKeys(l *lua.LState, val lua.LValue, ptr *mt.Keys) {
+func ReadKeys(l *lua.LState, val lua.LValue, ptr *mt.Keys) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for Keys: must be a table")
 	}
@@ -93,20 +94,20 @@ func readKeys(l *lua.LState, val lua.LValue, ptr *mt.Keys) {
 	}
 }
 
-func readPlayerPos(l *lua.LState, val lua.LValue, ptr *mt.PlayerPos) {
+func ReadPlayerPos(l *lua.LState, val lua.LValue, ptr *mt.PlayerPos) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for PlayerPos: must be a table")
 	}
-	readUint8(l, l.GetField(val, "fov80"), &ptr.FOV80)
-	readKeys(l, l.GetField(val, "keys"), &ptr.Keys)
-	readInt32(l, l.GetField(val, "pitch100"), &ptr.Pitch100)
-	readVec3Int32(l, l.GetField(val, "pos100"), &ptr.Pos100)
-	readVec3Int32(l, l.GetField(val, "vel100"), &ptr.Vel100)
-	readUint8(l, l.GetField(val, "wanted_range"), &ptr.WantedRange)
-	readInt32(l, l.GetField(val, "yaw100"), &ptr.Yaw100)
+	ReadUint8(l, l.GetField(val, "fov80"), &ptr.FOV80)
+	ReadKeys(l, l.GetField(val, "keys"), &ptr.Keys)
+	ReadInt32(l, l.GetField(val, "pitch100"), &ptr.Pitch100)
+	ReadVec3Int32(l, l.GetField(val, "pos100"), &ptr.Pos100)
+	ReadVec3Int32(l, l.GetField(val, "vel100"), &ptr.Vel100)
+	ReadUint8(l, l.GetField(val, "wanted_range"), &ptr.WantedRange)
+	ReadInt32(l, l.GetField(val, "yaw100"), &ptr.Yaw100)
 }
 
-func readSliceSoundID(l *lua.LState, val lua.LValue, ptr *[]mt.SoundID) {
+func ReadSliceSoundID(l *lua.LState, val lua.LValue, ptr *[]mt.SoundID) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for []SoundID: must be a table")
 	}
@@ -114,11 +115,11 @@ func readSliceSoundID(l *lua.LState, val lua.LValue, ptr *[]mt.SoundID) {
 	n := tbl.MaxN()
 	*ptr = make([]mt.SoundID, n)
 	for i := range *ptr {
-		readSoundID(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
+		ReadSoundID(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
 	}
 }
 
-func readSliceString(l *lua.LState, val lua.LValue, ptr *[]string) {
+func ReadSliceString(l *lua.LState, val lua.LValue, ptr *[]string) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for []string: must be a table")
 	}
@@ -126,11 +127,11 @@ func readSliceString(l *lua.LState, val lua.LValue, ptr *[]string) {
 	n := tbl.MaxN()
 	*ptr = make([]string, n)
 	for i := range *ptr {
-		readString(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
+		ReadString(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
 	}
 }
 
-func readSliceVec3Int16(l *lua.LState, val lua.LValue, ptr *[][3]int16) {
+func ReadSliceVec3Int16(l *lua.LState, val lua.LValue, ptr *[][3]int16) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for [][3]int16: must be a table")
 	}
@@ -138,47 +139,47 @@ func readSliceVec3Int16(l *lua.LState, val lua.LValue, ptr *[][3]int16) {
 	n := tbl.MaxN()
 	*ptr = make([][3]int16, n)
 	for i := range *ptr {
-		readVec3Int16(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
+		ReadVec3Int16(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
 	}
 }
 
-func readSoundID(l *lua.LState, val lua.LValue, ptr *mt.SoundID) {
+func ReadSoundID(l *lua.LState, val lua.LValue, ptr *mt.SoundID) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for SoundID: must be a number")
 	}
-	*ptr = mt.SoundID(val.(lua.LNumber))
+	*ptr = mt.SoundID(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readUint16(l *lua.LState, val lua.LValue, ptr *uint16) {
+func ReadUint16(l *lua.LState, val lua.LValue, ptr *uint16) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for uint16: must be a number")
 	}
-	*ptr = uint16(val.(lua.LNumber))
+	*ptr = uint16(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readUint8(l *lua.LState, val lua.LValue, ptr *uint8) {
+func ReadUint8(l *lua.LState, val lua.LValue, ptr *uint8) {
 	if val.Type() != lua.LTNumber {
 		panic("invalid value for uint8: must be a number")
 	}
-	*ptr = uint8(val.(lua.LNumber))
+	*ptr = uint8(math.Round(float64(val.(lua.LNumber))))
 }
 
-func readVec3Int16(l *lua.LState, val lua.LValue, ptr *[3]int16) {
+func ReadVec3Int16(l *lua.LState, val lua.LValue, ptr *[3]int16) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for [3]int16: must be a table")
 	}
-	readInt16(l, l.GetField(val, "x"), &(*ptr)[0])
-	readInt16(l, l.GetField(val, "y"), &(*ptr)[1])
-	readInt16(l, l.GetField(val, "z"), &(*ptr)[2])
+	ReadInt16(l, l.GetField(val, "x"), &(*ptr)[0])
+	ReadInt16(l, l.GetField(val, "y"), &(*ptr)[1])
+	ReadInt16(l, l.GetField(val, "z"), &(*ptr)[2])
 }
 
-func readVec3Int32(l *lua.LState, val lua.LValue, ptr *[3]int32) {
+func ReadVec3Int32(l *lua.LState, val lua.LValue, ptr *[3]int32) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for [3]int32: must be a table")
 	}
-	readInt32(l, l.GetField(val, "x"), &(*ptr)[0])
-	readInt32(l, l.GetField(val, "y"), &(*ptr)[1])
-	readInt32(l, l.GetField(val, "z"), &(*ptr)[2])
+	ReadInt32(l, l.GetField(val, "x"), &(*ptr)[0])
+	ReadInt32(l, l.GetField(val, "y"), &(*ptr)[1])
+	ReadInt32(l, l.GetField(val, "z"), &(*ptr)[2])
 }
 
 func ReadCmd(l *lua.LState) mt.Cmd {
@@ -187,88 +188,88 @@ func ReadCmd(l *lua.LState) mt.Cmd {
 	case "chat_msg":
 		ptr := &mt.ToSrvChatMsg{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "msg"), &ptr.Msg)
+		ReadString(l, l.GetField(val, "msg"), &ptr.Msg)
 		return ptr
 	case "clt_ready":
 		ptr := &mt.ToSrvCltReady{}
 		val := l.CheckTable(3)
-		readUint16(l, l.GetField(val, "formspec"), &ptr.Formspec)
-		readUint8(l, l.GetField(val, "major"), &ptr.Major)
-		readUint8(l, l.GetField(val, "minor"), &ptr.Minor)
-		readUint8(l, l.GetField(val, "patch"), &ptr.Patch)
-		readString(l, l.GetField(val, "version"), &ptr.Version)
+		ReadUint16(l, l.GetField(val, "formspec"), &ptr.Formspec)
+		ReadUint8(l, l.GetField(val, "major"), &ptr.Major)
+		ReadUint8(l, l.GetField(val, "minor"), &ptr.Minor)
+		ReadUint8(l, l.GetField(val, "patch"), &ptr.Patch)
+		ReadString(l, l.GetField(val, "version"), &ptr.Version)
 		return ptr
 	case "deleted_blks":
 		ptr := &mt.ToSrvDeletedBlks{}
 		val := l.CheckTable(3)
-		readSliceVec3Int16(l, l.GetField(val, "blks"), &ptr.Blks)
+		ReadSliceVec3Int16(l, l.GetField(val, "blks"), &ptr.Blks)
 		return ptr
 	case "fall_dmg":
 		ptr := &mt.ToSrvFallDmg{}
 		val := l.CheckTable(3)
-		readUint16(l, l.GetField(val, "amount"), &ptr.Amount)
+		ReadUint16(l, l.GetField(val, "amount"), &ptr.Amount)
 		return ptr
 	case "first_srp":
 		ptr := &mt.ToSrvFirstSRP{}
 		val := l.CheckTable(3)
-		readBool(l, l.GetField(val, "empty_passwd"), &ptr.EmptyPasswd)
-		readSliceByte(l, l.GetField(val, "salt"), &ptr.Salt)
-		readSliceByte(l, l.GetField(val, "verifier"), &ptr.Verifier)
+		ReadBool(l, l.GetField(val, "empty_passwd"), &ptr.EmptyPasswd)
+		ReadSliceByte(l, l.GetField(val, "salt"), &ptr.Salt)
+		ReadSliceByte(l, l.GetField(val, "verifier"), &ptr.Verifier)
 		return ptr
 	case "got_blks":
 		ptr := &mt.ToSrvGotBlks{}
 		val := l.CheckTable(3)
-		readSliceVec3Int16(l, l.GetField(val, "blks"), &ptr.Blks)
+		ReadSliceVec3Int16(l, l.GetField(val, "blks"), &ptr.Blks)
 		return ptr
 	case "init":
 		ptr := &mt.ToSrvInit{}
 		val := l.CheckTable(3)
-		readUint16(l, l.GetField(val, "max_proto_ver"), &ptr.MaxProtoVer)
-		readUint16(l, l.GetField(val, "min_proto_ver"), &ptr.MinProtoVer)
-		readString(l, l.GetField(val, "player_name"), &ptr.PlayerName)
-		readBool(l, l.GetField(val, "send_full_item_meta"), &ptr.SendFullItemMeta)
-		readUint8(l, l.GetField(val, "serialize_ver"), &ptr.SerializeVer)
-		readCompressionModes(l, l.GetField(val, "supported_compression"), &ptr.SupportedCompression)
+		ReadUint16(l, l.GetField(val, "max_proto_ver"), &ptr.MaxProtoVer)
+		ReadUint16(l, l.GetField(val, "min_proto_ver"), &ptr.MinProtoVer)
+		ReadString(l, l.GetField(val, "player_name"), &ptr.PlayerName)
+		ReadBool(l, l.GetField(val, "send_full_item_meta"), &ptr.SendFullItemMeta)
+		ReadUint8(l, l.GetField(val, "serialize_ver"), &ptr.SerializeVer)
+		ReadCompressionModes(l, l.GetField(val, "supported_compression"), &ptr.SupportedCompression)
 		return ptr
 	case "init2":
 		ptr := &mt.ToSrvInit2{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "lang"), &ptr.Lang)
+		ReadString(l, l.GetField(val, "lang"), &ptr.Lang)
 		return ptr
 	case "interact":
 		ptr := &mt.ToSrvInteract{}
 		val := l.CheckTable(3)
-		readInteraction(l, l.GetField(val, "action"), &ptr.Action)
-		readUint16(l, l.GetField(val, "item_slot"), &ptr.ItemSlot)
-		readPointedThing(l, l.GetField(val, "pointed"), &ptr.Pointed)
-		readPlayerPos(l, l.GetField(val, "pos"), &ptr.Pos)
+		ReadInteraction(l, l.GetField(val, "action"), &ptr.Action)
+		ReadUint16(l, l.GetField(val, "item_slot"), &ptr.ItemSlot)
+		ReadPointedThing(l, l.GetField(val, "pointed"), &ptr.Pointed)
+		ReadPlayerPos(l, l.GetField(val, "pos"), &ptr.Pos)
 		return ptr
 	case "inv_action":
 		ptr := &mt.ToSrvInvAction{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "action"), &ptr.Action)
+		ReadString(l, l.GetField(val, "action"), &ptr.Action)
 		return ptr
 	case "inv_fields":
 		ptr := &mt.ToSrvInvFields{}
 		val := l.CheckTable(3)
-		readSliceField(l, l.GetField(val, "fields"), &ptr.Fields)
-		readString(l, l.GetField(val, "formname"), &ptr.Formname)
+		ReadSliceField(l, l.GetField(val, "fields"), &ptr.Fields)
+		ReadString(l, l.GetField(val, "formname"), &ptr.Formname)
 		return ptr
 	case "join_mod_chan":
 		ptr := &mt.ToSrvJoinModChan{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "channel"), &ptr.Channel)
+		ReadString(l, l.GetField(val, "channel"), &ptr.Channel)
 		return ptr
 	case "leave_mod_chan":
 		ptr := &mt.ToSrvLeaveModChan{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "channel"), &ptr.Channel)
+		ReadString(l, l.GetField(val, "channel"), &ptr.Channel)
 		return ptr
 	case "msg_mod_chan":
 		ptr := &mt.ToSrvMsgModChan{}
 		val := l.CheckTable(3)
-		readString(l, l.GetField(val, "channel"), &ptr.Channel)
-		readString(l, l.GetField(val, "msg"), &ptr.Msg)
+		ReadString(l, l.GetField(val, "channel"), &ptr.Channel)
+		ReadString(l, l.GetField(val, "msg"), &ptr.Msg)
 		return ptr
 	case "nil":
 		ptr := &mt.ToSrvNil{}
@@ -276,24 +277,24 @@ func ReadCmd(l *lua.LState) mt.Cmd {
 	case "node_meta_fields":
 		ptr := &mt.ToSrvNodeMetaFields{}
 		val := l.CheckTable(3)
-		readSliceField(l, l.GetField(val, "fields"), &ptr.Fields)
-		readString(l, l.GetField(val, "formname"), &ptr.Formname)
-		readVec3Int16(l, l.GetField(val, "pos"), &ptr.Pos)
+		ReadSliceField(l, l.GetField(val, "fields"), &ptr.Fields)
+		ReadString(l, l.GetField(val, "formname"), &ptr.Formname)
+		ReadVec3Int16(l, l.GetField(val, "pos"), &ptr.Pos)
 		return ptr
 	case "player_pos":
 		ptr := &mt.ToSrvPlayerPos{}
 		val := l.CheckTable(3)
-		readPlayerPos(l, l.GetField(val, "pos"), &ptr.Pos)
+		ReadPlayerPos(l, l.GetField(val, "pos"), &ptr.Pos)
 		return ptr
 	case "removed_sounds":
 		ptr := &mt.ToSrvRemovedSounds{}
 		val := l.CheckTable(3)
-		readSliceSoundID(l, l.GetField(val, "ids"), &ptr.IDs)
+		ReadSliceSoundID(l, l.GetField(val, "ids"), &ptr.IDs)
 		return ptr
 	case "req_media":
 		ptr := &mt.ToSrvReqMedia{}
 		val := l.CheckTable(3)
-		readSliceString(l, l.GetField(val, "filenames"), &ptr.Filenames)
+		ReadSliceString(l, l.GetField(val, "filenames"), &ptr.Filenames)
 		return ptr
 	case "respawn":
 		ptr := &mt.ToSrvRespawn{}
@@ -301,18 +302,18 @@ func ReadCmd(l *lua.LState) mt.Cmd {
 	case "select_item":
 		ptr := &mt.ToSrvSelectItem{}
 		val := l.CheckTable(3)
-		readUint16(l, l.GetField(val, "slot"), &ptr.Slot)
+		ReadUint16(l, l.GetField(val, "slot"), &ptr.Slot)
 		return ptr
 	case "srp_bytes_a":
 		ptr := &mt.ToSrvSRPBytesA{}
 		val := l.CheckTable(3)
-		readSliceByte(l, l.GetField(val, "a"), &ptr.A)
-		readBool(l, l.GetField(val, "no_sha1"), &ptr.NoSHA1)
+		ReadSliceByte(l, l.GetField(val, "a"), &ptr.A)
+		ReadBool(l, l.GetField(val, "no_sha1"), &ptr.NoSHA1)
 		return ptr
 	case "srp_bytes_m":
 		ptr := &mt.ToSrvSRPBytesM{}
 		val := l.CheckTable(3)
-		readSliceByte(l, l.GetField(val, "m"), &ptr.M)
+		ReadSliceByte(l, l.GetField(val, "m"), &ptr.M)
 		return ptr
 	}
 
diff --git a/convert/read_mkauto.lua b/convert/read_mkauto.lua
index f749f99..7ef82dd 100755
--- a/convert/read_mkauto.lua
+++ b/convert/read_mkauto.lua
@@ -11,7 +11,7 @@ local readers = {
 	PointedThing = true,
 }
 
-local static_uses = {
+local external = {
 	"[3]int16",
 	"AOID"
 }
@@ -40,7 +40,7 @@ local function generate(name)
 	end
 
 	if not readers[fnname] then
-		local fun = "func read" .. fnname .. "(l *lua.LState, val lua.LValue, ptr *" .. type  .. ") {\n"
+		local fun = "func Read" .. fnname .. "(l *lua.LState, val lua.LValue, ptr *" .. type  .. ") {\n"
 
 		if child then
 			fun = fun .. "\tif val.Type() != lua.LTTable {\n\t\tpanic(\"invalid value for "
@@ -53,7 +53,7 @@ local function generate(name)
 	n := tbl.MaxN()
 	*ptr = make(]] .. type .. [[, n)
 	for i := range *ptr {
-		read]] .. childfn .. [[(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
+		Read]] .. childfn .. [[(l, l.RawGetInt(tbl, i+1), &(*ptr)[i])
 	}
 ]]
 			else
@@ -64,14 +64,20 @@ local function generate(name)
 					end
 
 					fun = fun
-						.. "\tread" .. childfn
+						.. "\tRead" .. childfn
 						.. "(l, l.GetField(val, \"" .. v .. "\"), &(*ptr)[" .. (i - 1) .. "])\n"
 				end
 			end
 		else
+			local is_float = type == "float32" or type == "float64"
+
 			fun = fun .. "\tif val.Type() != lua.LTNumber {\n\t\tpanic(\"invalid value for "
 				.. name .. ": must be a number\")\n\t}\n"
-				.. "\t*ptr = " .. type .. "(val.(lua.LNumber))\n"
+				.. "\t*ptr = " .. type .. "("
+				.. (is_float and "" or "math.Round(float64(")
+				.. "val.(lua.LNumber)"
+				.. (is_float and "" or "))")
+				.. ")\n"
 		end
 
 		fun = fun .. "}\n\n"
@@ -82,13 +88,13 @@ local function generate(name)
 	return fnname, type
 end
 
-for _, use in ipairs(static_uses) do
+for _, use in ipairs(external) do
 	generate(use)
 end
 
 local function signature(name, prefix, type)
 	local camel = camel_case(name)
-	return "func read" .. camel .. "(l *lua.LState, val lua.LValue, ptr *" .. prefix .. camel  .. ") {\n"
+	return "func Read" .. camel .. "(l *lua.LState, val lua.LValue, ptr *" .. prefix .. camel  .. ") {\n"
 end
 
 for name, fields in spairs(parse_spec("server/enum")) do
@@ -135,7 +141,7 @@ local function fields_fromlua(fields, indent)
 	local impl = ""
 
 	for name, type in spairs(fields) do
-		impl = impl .. indent .. "read" .. generate(type) .. "(l, l.GetField(val, \"" .. name .. "\"), &ptr."
+		impl = impl .. indent .. "Read" .. generate(type) .. "(l, l.GetField(val, \"" .. name .. "\"), &ptr."
 			.. camel_case(name) .. ")\n"
 	end
 
@@ -183,6 +189,7 @@ package convert
 import (
 	"github.com/anon55555/mt"
 	"github.com/yuin/gopher-lua"
+	"math"
 )
 
 ]] .. funcs .. [[
diff --git a/convert/read_static.go b/convert/read_static.go
index 3e7dc30..3be41e1 100644
--- a/convert/read_static.go
+++ b/convert/read_static.go
@@ -7,28 +7,28 @@ import (
 
 //go:generate ./read_mkauto.lua
 
-func readBool(l *lua.LState, val lua.LValue, ptr *bool) {
+func ReadBool(l *lua.LState, val lua.LValue, ptr *bool) {
 	if val.Type() != lua.LTBool {
 		panic("invalid value for bool: must be a boolean")
 	}
 	*ptr = bool(val.(lua.LBool))
 }
 
-func readString(l *lua.LState, val lua.LValue, ptr *string) {
+func ReadString(l *lua.LState, val lua.LValue, ptr *string) {
 	if val.Type() != lua.LTString {
 		panic("invalid value for string: must be a string")
 	}
 	*ptr = string(val.(lua.LString))
 }
 
-func readSliceByte(l *lua.LState, val lua.LValue, ptr *[]byte) {
+func ReadSliceByte(l *lua.LState, val lua.LValue, ptr *[]byte) {
 	if val.Type() != lua.LTString {
 		panic("invalid value for []byte: must be a string")
 	}
 	*ptr = []byte(val.(lua.LString))
 }
 
-func readSliceField(l *lua.LState, val lua.LValue, ptr *[]mt.Field) {
+func ReadSliceField(l *lua.LState, val lua.LValue, ptr *[]mt.Field) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for []Field: must be a table")
 	}
@@ -40,7 +40,7 @@ func readSliceField(l *lua.LState, val lua.LValue, ptr *[]mt.Field) {
 	})
 }
 
-func readPointedThing(l *lua.LState, val lua.LValue, ptr *mt.PointedThing) {
+func ReadPointedThing(l *lua.LState, val lua.LValue, ptr *mt.PointedThing) {
 	if val.Type() != lua.LTTable {
 		panic("invalid value for PointedThing: must be a table")
 	}
@@ -48,12 +48,12 @@ func readPointedThing(l *lua.LState, val lua.LValue, ptr *mt.PointedThing) {
 
 	if id != lua.LNil {
 		pt := &mt.PointedAO{}
-		readAOID(l, id, &(*pt).ID)
+		ReadAOID(l, id, &(*pt).ID)
 		*ptr = pt
 	} else {
 		pt := &mt.PointedNode{}
-		readVec3Int16(l, l.GetField(val, "under"), &(*pt).Under)
-		readVec3Int16(l, l.GetField(val, "above"), &(*pt).Above)
+		ReadVec3Int16(l, l.GetField(val, "under"), &(*pt).Under)
+		ReadVec3Int16(l, l.GetField(val, "above"), &(*pt).Above)
 		*ptr = pt
 	}
 }
diff --git a/convert/spec.lua b/convert/spec.lua
index 588f4d7..d7ba432 100644
--- a/convert/spec.lua
+++ b/convert/spec.lua
@@ -40,8 +40,9 @@ local function parse_pair(pair, value_first)
 
 	if idx then
 		local first, second = pair:sub(1, idx - 1), pair:sub(idx + 1)
+		local c = first:sub(1, 1)
 
-		if value_first and first:sub(1, 1) ~= "{" then
+		if value_first and c ~= "{" and c ~= "%" then
 			return second, first
 		else
 			return first, second
@@ -52,7 +53,7 @@ local function parse_pair(pair, value_first)
 end
 
 function parse_spec(name, value_first)
-	local f = io.open("../spec/" .. name, "r")
+	local f = io.open("spec/" .. name, "r")
 	local spec = {}
 	local top
 
diff --git a/spec/casemap b/convert/spec/casemap
index ab4c10a..ab4c10a 100644
--- a/spec/casemap
+++ b/convert/spec/casemap
diff --git a/spec/client/enum b/convert/spec/client/enum
index cd5f166..cd5f166 100644
--- a/spec/client/enum
+++ b/convert/spec/client/enum
diff --git a/spec/client/flag b/convert/spec/client/flag
index e13f4da..17a8c7a 100644
--- a/spec/client/flag
+++ b/convert/spec/client/flag
@@ -17,3 +17,9 @@ hud_flags
 	breath_bar
 	minimap
 	radar_minimap
+map_blk_flags
+	prefix Blk
+	is_underground
+	day_night_diff
+	light_expired
+	not_generated
diff --git a/spec/client/pkt b/convert/spec/client/pkt
index 2a150e3..0a15002 100644
--- a/spec/client/pkt
+++ b/convert/spec/client/pkt
@@ -19,7 +19,7 @@ kick
 	boolean reconnect
 blk_data
 	vec3 blkpos
-	# TODO
+	map_blk blk
 add_node
 	vec3 pos
 	node node
@@ -195,7 +195,8 @@ sky_params
 	color moon_fog_tint
 	string fog_tint_type
 	{textures} val.Type == "skybox"
-	texture_list textures
+	%textures% mt.Texture
+	string_list textures
 	{day_sky} val.Type == "regular"
 	{day_horizon} val.Type == "regular"
 	{dawn_sky} val.Type == "regular"
@@ -237,6 +238,7 @@ fade_sound
 	number gain
 update_player_list
 	player_list_update_type type
+	%players% string
 	string_list players
 mod_chan_msg
 	string channel
@@ -246,7 +248,7 @@ mod_chan_sig
 	mod_chan_sig signal
 	string channel
 node_metas_changed
-	# TODO
+	changed_node_metas changed
 sun_params
 	boolean visible
 	string texture
diff --git a/convert/spec/client/struct b/convert/spec/client/struct
new file mode 100644
index 0000000..f3bbd10
--- /dev/null
+++ b/convert/spec/client/struct
@@ -0,0 +1,43 @@
+node
+	number param0
+	number param1
+	number param2
+tile_anim
+	anim_type type
+	vec2 aspect_ratio
+	vec2 n_frames
+	number duration
+hud
+	hud_type type
+	vec2 pos
+	string name
+	vec2 scale
+	string text
+	number number
+	number item
+	number dir
+	vec2 align
+	vec2 offset
+	vec3 world_pos
+	vec2 size
+	number z_index
+	string text_2
+map_blk
+	map_blk_flags flags
+	number lit_from
+	%param0% mt.Content
+	4096 param0
+	%param1% uint8
+	4096 param1
+	%param2% uint8
+	4096 param2
+	node_metas node_metas
+node_meta
+	node_meta_fields fields
+	inv inv
+tool_caps
+	number attack_cooldown
+	number max_drop_lvl
+	group_caps group_caps
+	groups dmg_groups
+	number punch_uses
diff --git a/spec/server/enum b/convert/spec/server/enum
index 6f49e6d..6f49e6d 100644
--- a/spec/server/enum
+++ b/convert/spec/server/enum
diff --git a/spec/server/flag b/convert/spec/server/flag
index 4f8c164..4f8c164 100644
--- a/spec/server/flag
+++ b/convert/spec/server/flag
diff --git a/spec/server/pkt b/convert/spec/server/pkt
index 5578d55..5578d55 100644
--- a/spec/server/pkt
+++ b/convert/spec/server/pkt
diff --git a/spec/server/struct b/convert/spec/server/struct
index e971dbc..e971dbc 100644
--- a/spec/server/struct
+++ b/convert/spec/server/struct
diff --git a/doc/api.md b/doc/api.md
index 8dda81e..2105a81 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -15,6 +15,7 @@ Hydra uses gopher-lua, Lua 5.1
 
 - `escapes`: contains utility functions to deal with minetest escape sequences, see [escapes.md](escapes.md)
 - `client`: a function to create a client from command line arguments in the form `<server> <username> <password>`. This is trivial but so commonly used that this function was added to avoid repetition in scripts.
+- `base64`: contains the `base64.encode(data)` function to base64 encode a string as well as `base64.decode(data)` to decode
 
 ## Standard library additions
 
diff --git a/doc/client.md b/doc/client.md
index 9844591..9c1922e 100644
--- a/doc/client.md
+++ b/doc/client.md
@@ -22,3 +22,4 @@ After being disconnect, a client cannot be reconnected.
 Enabled components can be accessed by using `self.<component name>`.
 
 - `self.auth`: Handles authentication. Recommended for the vast majority of scripts. See [auth.md](auth.md).
+- `self.map`: Stores MapBlocks received from server. See [map.md](map.md).
diff --git a/doc/client_pkts.md b/doc/client_pkts.md
index 7f967a0..2594b9d 100644
--- a/doc/client_pkts.md
+++ b/doc/client_pkts.md
@@ -1,4 +1,4 @@
 # Client Packets
 TODO: automatically generate documentation from spec.
 
-For now, have a look at [spec/client](../spec/client)
+For now, have a look at [spec/client](../convert/spec/client)
diff --git a/doc/map.md b/doc/map.md
new file mode 100644
index 0000000..26fd51a
--- /dev/null
+++ b/doc/map.md
@@ -0,0 +1,13 @@
+# Map Component
+Source code: [map.go](../map.go)
+
+Map handles the `blk_data` and `node_metas_changed` packets.
+Map may send `got_blks`, `deleted_blks` packets.
+
+## Functions
+
+`self:clear()`: Forget all blocks.
+
+`self:block(blkpos)`: Return the `map_blk` at `blkpos` as found in the `blk_data` packet (See [client_pkts.md](client_pkts.md)). `nil` if block is not present.
+
+`self:node(pos)`: Return a node in the form `{ param0 = 126, param1 = 0, param2 = 0, meta = { ... } }`. The meta field is a `node_meta` as found in the `blk_data` packet. `nil` if node is not present.
diff --git a/doc/server_pkts.md b/doc/server_pkts.md
index 0b34367..ac8741e 100644
--- a/doc/server_pkts.md
+++ b/doc/server_pkts.md
@@ -1,4 +1,4 @@
 # Server Packets
 TODO: automatically generate documentation from spec.
 
-For now, have a look at [spec/server](../spec/server)
+For now, have a look at [spec/server](../convert/spec/server)
diff --git a/example/dump-traffic.lua b/example/dump-traffic.lua
index b3d89da..5dc83b6 100755
--- a/example/dump-traffic.lua
+++ b/example/dump-traffic.lua
@@ -1,19 +1,53 @@
 #!/usr/bin/env hydra-dragonfire
+local escapes = require("escapes")
+local base64 = require("base64")
 local client = require("client")()
 
 client:wildcard(true)
 client:connect()
 
+local function dump(val, indent)
+	local t = type(val)
+	local mt = getmetatable(val)
+
+	if t ~= "table" or mt and mt.__tostring then
+		if t == "string" then
+			val = val:gsub("\n", "\\n")
+		end
+		print(val)
+	else
+		print(val._type or "")
+
+		local idt = (indent or "") .. "  "
+		for k, v in pairs(val) do
+			if k ~= "_type" then
+				io.write(idt .. k .. " ")
+				dump(v, idt)
+			end
+		end
+	end
+end
+
 while not hydra.canceled() do
 	local pkt, interrupt = client:poll()
 
 	if pkt then
-		print(pkt._type)
-		for k, v in pairs(pkt) do
-			if k ~= "_type" then
-				print("", k, v)
-			end
+		if pkt._type == "srp_bytes_salt_b" then
+			pkt.b = base64.encode(pkt.b)
+			pkt.salt = base64.encode(pkt.salt)
+		end
+
+		if pkt._type == "chat_msg" then
+			pkt.text = escapes.strip_all(pkt.text)
+		end
+
+		if pkt._type == "blk_data" then
+			pkt.blk.param0 = {}
+			pkt.blk.param1 = {}
+			pkt.blk.param2 = {}
 		end
+
+		dump(pkt)
 	elseif not interrupt then
 		print("disconnected")
 		break
diff --git a/example/print-node.lua b/example/print-node.lua
new file mode 100755
index 0000000..3cf514e
--- /dev/null
+++ b/example/print-node.lua
@@ -0,0 +1,23 @@
+#!/usr/bin/env hydra-dragonfire
+local client = require("client")()
+client:enable("map")
+
+client:subscribe("move_player")
+client:connect()
+
+local pos
+
+while not hydra.canceled() do
+	local pkt, interrupted = client:poll(1)
+
+	if pkt then
+		pos = (pkt.pos / hydra.BS + vec3(0, -1, 0)):round()
+	elseif not interrupted then
+		break
+	elseif pos then
+		local node = client.map:node(pos)
+		print(pos, node and node.param0)
+	end
+end
+
+client:close()
diff --git a/hydra.go b/hydra.go
index c8f1e67..f34ca2b 100644
--- a/hydra.go
+++ b/hydra.go
@@ -28,11 +28,15 @@ var builtinEscapes string
 //go:embed builtin/client.lua
 var builtinClient string
 
+//go:embed builtin/base64.lua
+var builtinBase64 string
+
 var builtinFiles = []string{
 	builtinLuaX,
 	builtinVector,
 	builtinEscapes,
 	builtinClient,
+	builtinBase64,
 }
 
 var hydraFuncs = map[string]lua.LGFunction{
@@ -107,6 +111,7 @@ func main() {
 
 	l.SetField(l.NewTypeMetatable("hydra.auth"), "__index", l.SetFuncs(l.NewTable(), authFuncs))
 	l.SetField(l.NewTypeMetatable("hydra.client"), "__index", l.NewFunction(l_client_index))
+	l.SetField(l.NewTypeMetatable("hydra.map"), "__index", l.SetFuncs(l.NewTable(), mapFuncs))
 
 	for _, str := range builtinFiles {
 		if err := l.DoString(str); err != nil {
diff --git a/map.go b/map.go
new file mode 100644
index 0000000..08b97ec
--- /dev/null
+++ b/map.go
@@ -0,0 +1,116 @@
+package main
+
+import (
+	"github.com/anon55555/mt"
+	"github.com/dragonfireclient/hydra-dragonfire/convert"
+	"github.com/yuin/gopher-lua"
+	"sync"
+)
+
+type Map struct {
+	client   *Client
+	mu       sync.Mutex
+	blocks   map[[3]int16]*mt.MapBlk
+	userdata *lua.LUserData
+}
+
+var mapFuncs = map[string]lua.LGFunction{
+	"clear": l_map_clear,
+	"block": l_map_block,
+	"node":  l_map_node,
+}
+
+func getMap(l *lua.LState) *Map {
+	return l.CheckUserData(1).Value.(*Map)
+}
+
+func (mtmap *Map) create(client *Client, l *lua.LState) {
+	mtmap.client = client
+	mtmap.blocks = map[[3]int16]*mt.MapBlk{}
+	mtmap.userdata = l.NewUserData()
+	mtmap.userdata.Value = mtmap
+	l.SetMetatable(mtmap.userdata, l.GetTypeMetatable("hydra.map"))
+}
+
+func (mtmap *Map) push() lua.LValue {
+	return mtmap.userdata
+}
+
+func (mtmap *Map) connect() {
+}
+
+func (mtmap *Map) process(pkt *mt.Pkt) {
+	switch cmd := pkt.Cmd.(type) {
+	case *mt.ToCltBlkData:
+		mtmap.mu.Lock()
+		mtmap.blocks[cmd.Blkpos] = &cmd.Blk
+		mtmap.client.conn.SendCmd(&mt.ToSrvGotBlks{Blks: [][3]int16{cmd.Blkpos}})
+		mtmap.mu.Unlock()
+	}
+}
+
+func l_map_clear(l *lua.LState) int {
+	mtmap := getMap(l)
+
+	mtmap.mu.Lock()
+	defer mtmap.mu.Unlock()
+
+	var cmd mt.ToSrvDeletedBlks
+	for pos := range mtmap.blocks {
+		cmd.Blks = append(cmd.Blks, pos)
+	}
+
+	mtmap.blocks = map[[3]int16]*mt.MapBlk{}
+
+	mtmap.client.conn.SendCmd(&cmd)
+
+	return 0
+}
+
+func l_map_block(l *lua.LState) int {
+	mtmap := getMap(l)
+	var blkpos [3]int16
+	convert.ReadVec3Int16(l, l.Get(2), &blkpos)
+
+	mtmap.mu.Lock()
+	defer mtmap.mu.Unlock()
+
+	block, ok := mtmap.blocks[blkpos]
+	if ok {
+		l.Push(convert.PushMapBlk(l, *block))
+	} else {
+		l.Push(lua.LNil)
+	}
+
+	return 1
+}
+
+func l_map_node(l *lua.LState) int {
+	mtmap := getMap(l)
+
+	var pos [3]int16
+	convert.ReadVec3Int16(l, l.Get(2), &pos)
+	blkpos, i := mt.Pos2Blkpos(pos)
+
+	mtmap.mu.Lock()
+	defer mtmap.mu.Unlock()
+
+	block, block_exists := mtmap.blocks[blkpos]
+	if block_exists {
+		meta, meta_exists := block.NodeMetas[i]
+		if !meta_exists {
+			meta = &mt.NodeMeta{}
+		}
+
+		lnode := l.NewTable()
+		l.SetField(lnode, "param0", lua.LNumber(block.Param0[i]))
+		l.SetField(lnode, "param1", lua.LNumber(block.Param1[i]))
+		l.SetField(lnode, "param2", lua.LNumber(block.Param2[i]))
+		l.SetField(lnode, "meta", convert.PushNodeMeta(l, *meta))
+		l.Push(lnode)
+	} else {
+		l.Push(lua.LNil)
+	}
+
+	return 1
+}
diff --git a/spec/client/struct b/spec/client/struct
deleted file mode 100644
index d18189c..0000000
--- a/spec/client/struct
+++ /dev/null
@@ -1,24 +0,0 @@
-node
-	number param0
-	number param1
-	number param2
-tile_anim
-	anim_type type
-	vec2 aspect_ratio
-	vec2 n_frames
-	number duration
-hud
-	hud_type type
-	vec2 pos
-	string name
-	vec2 scale
-	string text
-	number number
-	number item
-	number dir
-	vec2 align
-	vec2 offset
-	vec3 world_pos
-	vec2 size
-	number z_index
-	string text_2